Means for preventing pitch deposit in hydraulic mains



ay 18,1926. I v 1,584,916

' W. F. DORNER MEANS FOR PREVENTING PITCH DEPOSIT IN HYDRAULIC MAINS Filed Ju y 5 2 2 Sheets-Shet 1 FIG. I:

l 5 I l. \5 a H I t M/VE/YTOR- WITNESS: I I I fw bm flo zer- I WM (KS May 18 1926.

1,584,91 6 w. F. DORNER MEANS FOR PREVENTING PITCH DEPOSIT IN HYDRAULIC MAINS Filed July 2,. 1924 2 Sheets-Sheet 2 Patented May 13, 1926.

WILLIAIH F. DOB/NEE, OE PHILADELPHIA, 39'

LAD

CONTRACTING COMPANY, OF OF DELAEVABE.

='-ISYLVANIA, ASSIGNOE TO THE '0'. G. I. PENNFYYLVANIA. A CORPORATION Iv'IEANS FOR.- PREVENTING PITCH I731 HLDRAULIG MAINS.

Application filed m 5,

Gas issuing from coal gas retorts contains tar, water vapor, and other ingredients, and these cool in the flow of gas resulting in a condensation and deposition of tar and water in the bottom of the hydraulic main. This condensed tar will differ in its character and in its fluidity during different portions of the carbonizing period. At times it will be'heavy and thick and it is liable to contain particles of lam black, pieces of pitch, and the like. These heavy portions of tar, and the like, instead of mixing with the lighter tar and thus yielding a uniform mixture thin enough to flow, will collect upon the bottom of the hydraulic main and gradually accumulate until the hydraulic main must be opened and the heavy accumulated material removed by hand causing waste of labor and loss of tar.

The principal object of the present invention is to prevent the heavy accumulation of material. on the bottom of the main, and this object is attained by keeping the tar in a continual state of agitation thereby preserving uniform fluidity of the tar and by inducing and permitting the tar to flow off in its entirety from the hydraulic main.

Other objects of the invention will appear from the following description at the end of which the invention will be claimed.

in the following description reference will be made to the accompanying drawings forming part hereof and in which Figure 1 is an elevational view, partly in section, illustrating so much and such parts of an hydraulic main and its accessories as are necessary for an illustration and description of the invention.

2 is a sectional view drawn to a re duced scale taken on the line 22 of Fig ure 1.

Fig. 3 is a similar view to Fig. 2 illustrating a modification, and

Figs. i, 5 and 6 are views drawn to an enlarged scale and illustrating respectively a rear, front and side view of one of the agitator and conveyer blades shown in Figs. 1 and 2.

In the drawings 1 is an hydraulic main having a tar run-off 2. 3 is a bridge pipe which connects with the ascension pipe 4- that communicates with the retorts 5 and with a dip pipe 6 that enters the hydraulic of the mixture from the hydraulic main.

1924. Serial No. 724,465.

main. These are examples of the usual. provisions of a gas retort setting.

According to the present lnvention there is a conveyor agitator blade movably mounted in and contoured in conformity with the bottom of the hydraulic main and inclined and adapted to feed toward the tar run-off of the latter, and there are means for moving said agitator and conveyer blade appropriately for feeding in that direction.

In the embodiment of the invention shown in Figs. 1, 2, 4, 5 and 6 the agitator and conveyor blade consists of spaced pairs of winglike form 7, whereas in the modification shown in Fig. 3, it consists of a spiral 8. In each case the inclination is appropriate for feeding toward the tar run-off. In Figs. 1 and 2 the shaft 9, which carries the agitator and conveyor blade consisting of the elements 7 has imparted to it a motion of reciprocation, and in Fig. 3 the shaft 10 which carries the agitator and conveyer blade consisting of the spiral 8 has imparted to it a motion of rotation in the proper direction for feeding toward the tar run-off 2. The wings 7 may be placed upon the shaft 9 at distances about equal to the distance between the dip pipes, and the reciprocating stroke of the shaft 9 may be slightly greater than the wings are apart. The wings are generally oblong in transverse section with their depths perpendicular to the surface of he hydraulic main, and the wings are not at right angles to the shaft but are inclined thereto in the direction of the desired discharge of tar.

The described constructions afford a very thorough cleansing of the hydraulic main which is subject to deposit, insure a very thorough mixing and uniform fluidity of the tar, and give an actual propelling action Those skilled in the art will understand that modifications may be made in details of construction and arrangement without departing from the spirit of the invention which is not limit-ed as to those matters or otherwise than the prior art and the appended claims may require.

I claim:

1. Means for preventing pitch deposit in the hydraulic mains of gas retort settings, 105 comprising an hydraulic main having at one end a tnr rnn-oll, an agitator and con- 've ver blade movably mounted in and contonred in conformity with the bottom of the b .'dranlic main and inclined and adapted to ivelv feed in one direction toward ran-oft of the latter, and a sh: ft for theagitator and conveyor blade apt'or feeding in that direction.

for preventing pitch deposit in the hydraulic inains of gas retort settings, comprising an lrvdranlic inain having at one end a tar rnn-ofi', an agitator and conveyor blade n'iovebl x mounted in and contoured in contorinit v with the bottom of the hydraulic main and inclined and adapted to progressively feed in one direction tovvard the tar run-on" of the latter, and a shaft carrying jeans for preventinx rpitch deposit in hydraulic niains of gas retort settings. i an hydraulic main having at at run-oft, agitator and conveyor blades arranged in spaced pairs and ol inclined wing-like form and movably mounted in and (,(H'El'OUIQL'l in contormit with the bottom of the lrvdranlic main and inclined and adapted to positively and progn'essivelv feed in one direction and toward the tar run-off, and shaftineans operative and arranged at one end of the main for moving the agitator and conveyor blades appropriately for feeding in that direction.

THLLLUI F. DOT. H E 

